Hemodynamic changes in the early phase of artificially created arteriovenous fistula: color Doppler ultrasonographic findings
| Autor: | S Büyükberber, O Sencan, S Fitöz, I Erden, M Kesenci, K Mahmutyazicioğlu |
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| Předmět: |
Adult
Male medicine.medical_specialty Adolescent medicine.medical_treatment Fistula Hemodynamics Arteriovenous fistula Subclavian Vein symbols.namesake Catheters Indwelling Renal Dialysis medicine.artery medicine Humans Radiology Nuclear Medicine and imaging Prospective Studies Radial artery Ultrasonography Doppler Color Radiological and Ultrasound Technology business.industry Vascular disease medicine.disease Surgery Arteriovenous Fistula Radial Artery symbols Female Hemodialysis Radiology business Doppler effect Blood Flow Velocity Kidney disease Follow-Up Studies |
| Zdroj: | Europe PubMed Central |
| Popis: | The objective of this study was to evaluate hemodynamic variables in arteriovenous fistulas by color Doppler ultrasonography. This study involved 28 patients with chronic renal failure who were sent to surgery clinic for creation of an arteriovenous fistula of the Brescia-Cimino type. Patients were evaluated preoperatively and on the first and seventh days postoperatively by a color Doppler ultrasound machine with a 7.5 MHz linear probe. The distal radial artery was examined preoperatively and the fistula itself postoperatively. Changes in the fistula size and the velocity, volume, and resistive index of the distal radial artery were recorded. Postoperatively the radial artery diameter, systolic flow rates, and volume flow had increased significantly, especially on the first day, in comparison to preoperative values. Resistive index values has decreased significantly at both the first and the seventh days postoperatively. Color Doppler ultrasonography is a very effective method in the evaluation of hemodynamics of arteriovenous fistulas in hemodialysis patients. It will allow an understanding of the pathology in nonfunctioning fistulas or of the cause of complications that develop secondarily. |
| Databáze: | OpenAIRE |
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